D
David A. Fike
Researcher at Washington University in St. Louis
Publications - 152
Citations - 8825
David A. Fike is an academic researcher from Washington University in St. Louis. The author has contributed to research in topics: Pyrite & δ34S. The author has an hindex of 38, co-authored 143 publications receiving 7325 citations. Previous affiliations of David A. Fike include California Institute of Technology & Massachusetts Institute of Technology.
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Journal ArticleDOI
Oxidation of the Ediacaran Ocean
TL;DR: High-resolution carbon isotope and sulphur isotope records from the Huqf Supergroup, Sultanate of Oman, that cover most of the Ediacaran period indicate that the ocean became increasingly oxygenated after the end of the Marinoan glaciation and allow us to identify three distinct stages of oxidation.
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Fossil steroids record the appearance of Demospongiae during the Cryogenian period
Gordon D. Love,Gordon D. Love,Emmanuelle Grosjean,Charlotte Stalvies,David A. Fike,John P. Grotzinger,Alexander S. Bradley,Amy E. Kelly,Maya P. Bhatia,Will Meredith,Colin E. Snape,Samuel A. Bowring,Daniel J. Condon,Daniel J. Condon,Roger E. Summons +14 more
TL;DR: It is suggested that shallow shelf waters in some late Cryogenian ocean basins contained dissolved oxygen in concentrations sufficient to support basal metazoan life at least 100 Myr before the rapid diversification of bilaterians during the Cambrian explosion.
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Provenance and diagenesis of the evaporite-bearing Burns formation, Meridiani Planum, Mars
Scott M. McLennan,James F. Bell,Wendy M. Calvin,Philip R. Christensen,Benton C. Clark,P. A. de Souza,Jack D. Farmer,William H. Farrand,David A. Fike,Ralf Gellert,A. Ghosh,Timothy D. Glotch,John P. Grotzinger,B. C. Hahn,Kenneth E. Herkenhoff,Joel A. Hurowitz,Jeffrey R. Johnson,Sarah Stewart Johnson,Bradley L. Jolliff,Göstar Klingelhöfer,Andrew H. Knoll,Z. A. Learner,Michael C. Malin,Harry Y. McSween,J. M. Pocock,Steven W. Ruff,Laurence A. Soderblom,Steven W. Squyres,Nicholas J. Tosca,Wesley A. Watters,Michael B. Wyatt,Albert S. Yen +31 more
TL;DR: Impure reworked evaporitic sandstones, preserved on Meridiani Planum, Mars, are mixtures of roughly equal amounts of altered siliciclastic debris, of basaltic provenance (40−±10% by mass), and chemical constituents, dominated by evaporitic minerals (jarosite, Mg, Ca-sulfates, chlorides, Fe-, Na-solves), hematite and possibly secondary silica (60−± 10%).
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Stratigraphy and sedimentology of a dry to wet eolian depositional system, Burns formation, Meridiani Planum, Mars
John P. Grotzinger,Raymond E. Arvidson,James F. Bell,Wendy M. Calvin,Benton C. Clark,David A. Fike,Matthew P. Golombek,Ronald Greeley,Albert F. C. Haldemann,K. E. Herkenhoff,Bradley L. Jolliff,Andrew H. Knoll,Michael C. Malin,Scott M. McLennan,T. Parker,L. Soderblom,Jascha Sohl-Dickstein,Steven W. Squyres,Nicholas J. Tosca,Wesley A. Watters +19 more
TL;DR: The Burns formation as mentioned in this paper is a set of genetically related strata defined here informally as the Burns formation, which can be subdivided into lower, middle, and upper units which, respectively, represent eolian dune and interdune facies associations.
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A Stratified Redox Model for the Ediacaran Ocean
TL;DR: A detailed spatial and temporal record of Ediacaran ocean chemistry for the Doushantuo Formation in the Nanhua Basin, South China is presented, finding evidence for a metastable zone of euxinic (anoxic and sulfidic) waters impinging on the continental shelf and sandwiched within ferruginous [Fe(II)-enriched] deep waters.